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  1. NX102 SSI encoder problem

    hi have a good time i have a nx102-1200 and a nx-ecs212 module. I connected an SSI encoder to the card and read the position value in the software. The encoder counts 360 pulses in each round and then it goes to zero. I want to use GearIn function and have the encoder as the master and a servo motor as the slave. In each revolution, the encoder pulse becomes zero, and as a result, the servo motor movement is not continuous!!! I want the servo motor to be continuous! In fact, I don't want the encoder pulse to zero every time. What should I do? Is there a solution? please help me thank you so much
  2. We are working with two VFDs FR-A820 Series, each of them driving a motor that obey a master-slave relationship. One of them is in speed control, while the other is in torque control. Each of the VFDs has one of the Mitsubishi FR-A8AP encoder reading cards that collect the data from an Avtron A56 encoder. While testing our system it came our realization that, if one measures the resistance across the terminals of the encoder cards mounted on the VFD these are not the same. Concretely, this is the reading we get: (see attached)   We noticed that this difference in the resistance causes a voltage drop in the encoder signal when looked over a oscilloscope. We are surprised that this resistance is different: a) between the cards, b) between the terminals A and B in the VFD. We wanted to ask: Is this behavior expected? Should the resistances in both cases be different? Is this something we should be concerned about? So far our application works and our motor turns as they should, but we are quite surprised that this is the case.
  3. Hello Guys, I have a Mitsubishi A8000 series vfd with an encoder card and also encoder. With analog (0-10V) signal i can read back the current speed. The conveyor convey paper sheets. Occasionally they change the width of the paper but the the two type of paper is connected. We have a camera on the begging of the conveyor, and we would like to lets say cut it 2 meter later. But the position should be very precise otherwise we are not cut it in the good position. The cutting procedure would happen also an asynchronous motor or with servo motor.  Is it possible to write a tracking program and cut paper sheet in a good position ? My plane is to stop the CV in the position and waiting for the cut and go on.  The plc is Allen Bradley, control logix 5580. Any tip would be appreciated. Thank you so much. 
  4. Positioning and speed control

    Hello Guys. Is it possible to use an fr-a840 to use in the same time positioning control and also in speed control mode ? In the moment the vfd is in speed control mode. But now i also have to need to stop the conveyor in certain position. It will be a new feature. If its not possible, do i need a hsc ?  The speed of the conveyor is 20 m/min and the accuracy should be within 3 mm.  Could anybody help me with this.  Thanks ahead.
  5. Positioning and speed control

    Hello Guys. Is it possible to use an fr-a840 to use in the same time positioning control and also in speed control mode ? In the moment the vfd is in speed control mode. But now i also have to need to stop the conveyor in certain position. It will be a new feature. If its not possible, do i need a hsc ?  The speed of the conveyor is 20 m/min and the accuracy should be within 3 mm.  Could anybody help me with this.  Thanks ahead.
  6. Hey everyone, I'm new to programming PLCs and I've run into a problem. I have a Micrologix 1400 Series B PLC, and for the past month, I've been using a free trial of RSLogix 500 Starter. But now, the trial ran out, and so I bought a license for "RSLogix Micro Starter". The problem is that when I downloaded my updated file to the PLC for the first time with micro starter, the PLC's outputs don't work anymore. I checked the PLC screen and the inputs from the HMI screen are getting recognized, but the inputs from the physical sensors are not. Also, none of the outputs are being activated on the PLC at all, which I can tell by looking at the I/O status on the PLC screen itself. I then uploaded a new test program, where you press a button and a light turns on, but that doesn't work either. I haven't changed any of the physical wiring, only thing I've changed is that I'm using RSLogix Micro Starter as opposed to RSLogix 500 Starter. I spoke to a Rockwell technician about this and he said that there shouldn't be any problem, as I haven't done anything wrong. So I now ask everyone on this forum if they could help me out a bit.
  7. Hello everyone,   I'm working on a project where I'm using Vtscada Light to communicate with a MicroLogix 1200 PLC. Currently, I can read values from the PLC without any issues. However, I'm facing difficulties when attempting to write values back to the PLC.   Setup: PLC: MicroLogix 1200 SCADA Software: Vtscada Light Communication: Rockwell Driver with a serial port and serial-to-ethernet converter   I'm looking for guidance on the proper method to write values to the. If anyone has experience with this setup or similar, your insights would be much appreciated.   Thank you for your help!  
  8. Hi guys, my site uses mainly Mitsi PLC's & HMI's so not familiar with AllenBradley but i have two Micrologixe 1200 PLC's connected to Panelview 300 HMI's. The machines are twenty plus years old and now both HMI's are barely legible as the screens are so dim.  I want to upgrade the HMI's as they are obsolete but my problem is, the program within the PLC is Password Protected and i cannot read, upload or download to the PLC.  The original manufacturer has been taken over some years ago and no-one knows the password. They have sent me an old program that could possibly work which is not password protected, but i cannot download it to the PLC without the original Password. Can anyone help me?
  9. Encoder position with vfd

    Hello guys.  I have a question, i have a mistubishi fr-a800 vfd with an encoder option card. On the motor we have an encoder.  I can read back the speed with the plc with analog signal. But can i use also for, tracking the distance ? Can i set anyhow the inverter lets say after one round on the encder send some digital signal to the plc. Is there any chance to set it ?  Lets say this is a conveyor, in this case its better if i put an encoder/counter on the conveyor and it will be directly connected to the plc.  Thanks ahead
  10. Does anyone know how to change the reading on Omron servo motor reading from negative to positive? The encoder is reading negative values when it is moving in the forward direction.  I am using 1S servo on NX1P2 controller on Sysmac studio software.  Please suggest. 
  11. Hey group! I am working on a project that has a machine that forms cartons that will drop the cartons into a cleated conveyor after they are formed. The forming machine needs to be synchronized with the cleated conveyor so that the formed cartons will drop in between the cleats as they pass under the forming machine. So, in essence, the conveyor will be the master and the forming machine will be a slave to the conveyor and match its position accordingly. Initially, it was proposed that the conveyor utilize a CIP encoder so it could be set up as a motion axis, but the customer declined that option as they didn't care for using CIP encoders (can't really blame them!). So, a slightly cruder proposal of using two 1024 count encoders was proposed, which they accepted. However, your friendly programmer here isn't quite sure how to make that work! I think the basic concept is encoder following but but I can't seem to find anything online that really describes the actual process or logic for this. The RA Sample Code site doesn't seem to have anything on there but maybe I just haven't entered the right search keywords. The forming machine has the following notable components: 5069-L310ER 5069-HSC2xOB4 PowerFlex 525 drive 1024 count incremental encoder As noted, the idea is to have a 1024 count encoder mounted on the conveyor with some sort of ratio so that the counts will run the pitch of the cleats 508 mm). Some trickery will have to worked in to get them to sync at the right time but for the time being, I'm just looking for a method to do the encoder following and asking the group if anyone has some ideas, or better yet, a method, of how to accomplish that.
  12. Uploaded a program from a micrologix 1400, I added an integer data file. Went to download it, and the processor types were different. I suppose I am just going to change it to match what is on the machine, but why did this happen? The controller was password protected. so maybe it did not get the processor info for some reason. Even when online with the processor, it reads incorrect.  
  13.  I am very green at this and learning online as I have purchased a brand new Micrologix 1400 1766L32BXBA. I am pulling my hair out as I cannot even power an LED or for that matter get any 24 volt reading from the outputs via program. I have even forced them on so shouldnt I be able to see something? I am connected via Ethernet ,Rslinx in concert with using Micro starter software (not lite) and the unit does not show any faults and is in the run mode. I can see the bits forced on the software and on the unit's LCD screen in I/O status. Is there a way to trouble shoot if the unit is bad or I am overlooking something incredibly simple. I do not have any floating inputs or outputs with the common from the power supply and the unit is properly grounded all nice and tidy on a din rail. Like I said I am very new at this so I am sorry if this is a bad question.
  14. Hello everyone, I am a newbie with PLC. I have a Micrologix 1000. The last time I connected with RSLinx easy, however, I change it to DH485 (I do not remember exactly). And now I can not connect it to RSLinx, I tried many times for all types of drivers. Please help me. Thank you very much.
  15. Encoder for fx1n

    Hi all! How can I use two AB phase encoder at the same time. I use Mitsubishi FX1N PLC, and I would like to use a high speed counter. I think the plc has 6 high speed counter input, but I cant use only one at same time.
  16. Hi, I have to implement an axis control in a NX1P2 PLC using an inverter (3G3MX2) and an encoder cabled on a EC0122 board. I found something similar implemented  on a CJ2M PLC, but I have no idea how to set up the axis in the configuration of sysmac studio and how to implement the control. Can someone help me? Some sample to catch out the configuration?   Thanks a lot Andrea
  17. connect encoder to nx1p2

    hi everyone i have a question about nx ec0122 i connected an encoder to ec0122. now i want creat a programm for read the pulse and reset pulse. Then write a program to measure the length of a roll. How should I do this? Thank you for your help
  18. I have 23 Micrologix 1400s and I want to take the same register, N100:99, out of each one and put in a single array in a CompactLogix L18ER. From what I have tried, it only seems like I can only map a range of integers, N100:77-N100:100, to the array and not an individual register to a particular element. (For example, mapping N100:99 from machine 16 to Selected_Model[15]) Can you map to individual elements in an array? If so, are there any instructions on how to do so? Thank you in advance for reading my post!
  19. Good day everyone, First post here so hopefully I'm not violating community guidelines in anyway. I've got a system that has some 50 odd Micrologix 1100 and 1400 in use and I'm currently working on setting up an auto timesync for all of them using just 1 of the PLCs that will be my master time PLC. So far I've put together the logic for all the message instructions with the corresponding IP of the slave devices. I'm running. Into an issue with not being able to terminate/break the message connection on a PLC that I have already synced. Is this even possible to do on the ML1100. Once I get to 16-17 messages DN it starts to ER and will not complete any further messages. What I have is a message instruction ladder with a timed trigger to activate a MSG and write the RTC data then time down and connect and write to the next and so on. When it triggers the message instruction of one PLC it also fires an OTE to trigger the BK of the previous message instruction. However it doesn't seem to be actually cutting the message connection and holds it persistent until a power cycle/download event.
  20. Version 1.4.0

    36 downloads

    ASComm IoT for .NET 7.0, 6.0, 5.0 & .NET Core 3.1+ developers. Class library for use in Visual Studio.NET to create HMI/SCADA apps that communicate with A-B ControlLogix, CompactLogix, Micro800 Series, PLC5, SLC500, and MicroLogix PLCs via Ethernet. Does not require OPC, RSLinx, or 3rd party drivers Visual Studio.NET 2017, 2019 and 2022 compatible All .NET 7.0, .NET 6.0, .NET 5.0 & .NET Core 3.1+ targets are supported, including Web, Windows, console, and service apps. Runs on Windows, Linux & Android Extremely high performance - less than 5 mSec typical transaction time Supports ControlLogix family native tag names Supports reading and writing entire ControlLogix family UDTs and PDTs Supports unsolicited messages Abstract base classes allow you to write generic code that works with all drivers Synchronous and asynchronous read/write methods Data change notifications Provides common user interface across all driver classes No limit on number of devices or data points Multi-threaded for high data throughput Includes extensive help system Example applications with VB and C# source code included. Easily connect office systems to factory floor. Runtime-free for qualified applications
  21. View File Allen-Bradley Ethernet Driver for .NET Core & .NET 5 .NET Core / .NET 5 compatible class library for use in Visual Studio.NET to create HMI/SCADA apps that communicate with A-B ControlLogix, CompactLogix, Micro800 Series, PLC5, SLC500, and MicroLogix PLCs via Ethernet. Supports unsolicited messages Does not require OPC, RSLinx, or 3rd party drivers Visual Studio.NET 2017 and 2019 compatible All .NET Core & .NET 5 targets are supported, including Web, Windows, console, and service apps. Extremely high performance - 5~10 mSec typical transaction time Supports ControlLogix family native tag names Supports reading and writing entire ControlLogix family UDTs and PDTs Abstract base classes allow you to write generic code that works with all drivers Synchronous and asynchronous read/write methods Data change notifications Provides common user interface across all driver classes No limit on number of devices or data points Multi-threaded for high data throughput Includes extensive help system Example applications with VB and C# source code included. Easily connect office systems to factory floor. Runtime-free for qualified applications Submitter Automated Solutions Submitted 10/25/21 Category Demo Software
  22. Hi All, I just take over a project which involve accurate positioning and movement up to 0.010mm(around 10 microns) of a servo motor. I found out that my motor always move to an incorrect position. Let's say I want it to move to absolute position of 5.210mm, I found out that it may move more till 5.235 or move less 5.190(something like that). So i start to check if I'm outputting correct pulse. Using CX-Drive, I connect to the driver then i found out that the pulse is correct and consistent(for example i use my pulse per revolution and pitch to determine how many pulses) Currently I'm using an incremental encoder and servo motor and my PLC cycle time is around 12 ms and my servo move at a speed of 0.66mm/s. So I was wondering if my PLC scan time will affect my accuracy in moving ?? I'm using a CJ2M PLC with CJ1W-NC413 pulse card , incremental encoder and a servo motor. I want to make sure is not software limitation or anything wrong on software side before I bring it to my mechanical team   Appreciate all inputs here and thanks!
  23. Hello everyone! I would like to connect a Micrologix 1100 with Citect 7.5 via ABMLXEIP (updated to latest version). I tried everything and it is still not working. The Citect and the PLC are on the same subnet and the ping works fine. All the configuration is done as the manual says (I attach the pictures). I have one NIC card and is connected to the PLC. The role is setted to “Server and Control Client”. The kernel has this error: [ERROR] [CORE] [0x07fc] [IOServer] [(GLOBAL)] [ErrorLog()][errlog.cpp] [266 ] Error: Channel offline, cannot talk CINIT 0015 PORT1_BOARD1 IODev_1100 Error_in_CMD-2 16 Generic 000021 Driver 00000020 (0x00000014) Any help would be much appreciated! Thanks, Gustavo.
  24. Crane Positioning

    Hey folksI'm trying to make a Ladder program in Sysmac Studio to control a Crane.The crane gets via a HMI a position that it must drive to, first at high speed then in low speed this is controlled via encoder signal for fine positioning there are several sensors.For all this I have an NX1P2-9B24DT1, NX-EC0222 and 3G3MX2-A4030-ESomeone here who can help me with an example of how this can be done in Ladder.Many thanks in advance for your help.
  25. Would someone be so kind as to document a method to clear a fault on a Micrologix 1000. Does one need programming cable and software or is there another method to clear a fault to see if it returns? regards.